Health: Splinting is a training manual found in the chapter "Pittsburgh".
Overview[]
Obtaining this manual improves the strength of the Health Kits Joel can create; they will replenish 33% more Health on use.
Location[]
When you reach the hunters' town in Pittsburgh and find the garage, head up the stairs and open the steel gray door. On the right, there will be another room with mattresses inside, and you will find this manual sitting on the bottom shelf on the left.